Interchangeable draw-gear for railway-cars



PATENTED JAN. 12, 1904.

F.'L. CLARK.

INTERGHANGEABLE DRAW GEAR FOR RAILWAY CARS.

APPLIOATION FILED MAY 10, 1901.

no MODEL.

XYI/ l/l/ IMMz 16M.

N9. 749,361. A l Patented January 12,1504.

UNITED STATES PATENT OFFICE.

f FRANCIS L. CLARK, OF .PITTSBURG, PENNSYLVANIA, Assie oa TO THE WESTINGHOUSE AIR BRAKE ooMPANY, or PITTSBURG, PENNSYL- VANIA, A v oRPoR no or PENNSYLVANIA.

IINTERCHANGEABLE 'DRA-W-GEAR FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 749,361, dated January 12, 1904.

i 7 Application filed May 10, 1901. Serial No. 59,607 (No model.)

To all whom i mywvw V the housing 3, containing the friction mechan- Be it known that I, FRANoIs L. CLARK, a ism, and the buffer and draft follower-plates L citizen of the United States, residing at Pittsand 5 extend through the strap to engage the burg, county of Allegheny, State of Pennsylabutments 7 and 8, carried by the side plates 5 ,vania, have invented or discovered a certain 6 6 of the frame. There is an opening 11 at the new and useful Improvement in Interchangeinner end of the frame to allow the end of the able Draw-Gear for Railway-Cars, of which strap 2 to pass through during the buffing acimprovement the following is a specification. tion, and'the buffing and draft plates are car- My invention relates to draw-gear for railried by the supporting-bars 12, which are se- .1 way-cars, and has for its object to provide a cured to the side plates 6, the side plates beconstruction by means of which the ordinary ing bolted to the draft-timbers in the usual spring draw-gear may be substituted in the way. Fig. 2 shows the same construction place of a friction draw-gear, and vice versa. with thefriction mechanism removed and the The friction draw-gear and buifing apparaordinary draft and buffer spring 9 and my im- .I5 tus, which is now rapidly coming into use, is proved filling-block 10 inserted in its place. usually secured to the draw-bar by means of The filling-block 10 may be made of any form a long strap or yoke and operates in an elonor shape adapted to transmit the bufling strains 5 gated frame or housing secured to the draftfrom the plate 5 or from the spring to the timbers of the car. It is often desirable to be abutment 8 of the frame, though I prefer to 2 able to substitute temporarily an ordinary form the same of cast-iron substantially of the spring draw-gear in place of the friction drawshape shown in Fig. 4 of the drawings. A

gear and bufling apparatus; but the spring vertical recess or opening 13 is provided in draw-gear is so much shorter than the friction the outer end of the filling-block, so that in apparatus that it'will not reach between the case it is desired to use a short strap of the 5 abutments of the frame. length corresponding to that of the ordinary My invention therefore consists in providdraft-spring the inner end of the strap may ing a filling piece or block adapted to cooperpass through and operate in the recess ofthe ate with an ordinary spring draw-gear and to filling-block, as indicated in dotted lines in beinserted between the abutments of the Figs. 2 and 3 of the drawings. 3 frame in the place of afriction draw-gear and If the-draft-spring 9 should be of smaller I bufling apparatus. diameter than the distance between the upper In the accompanying drawings, Figure l is and lower bars of the strap 2, a supportinga side elevation of a friction draw-gear and block 14. may be used for holding the spring buffing apparatus, the frame being shown in in position" in line with the draw-bar. The 35 section. Fig. 2 is a similar view showing a top of the supporting-block is hollowed out spring draw-gear embodying my improveto conform to the surface of the spring, and

ment. Fig. 3 is a plan view of my improved the bottom is provided with two lugs 15, adapt- 5 construction, the top of the frame being broken ed to extend downward between the support: A away and the side pieces being shown in horiing-bars 12 12 and the lower bar of the draft- 4 zontal section. Fig. 4. is a perspective view strap 2, the block being movably supported of the filling-block; and Fig. 5 is a perspecon these bars. Instead of this block other tive view of the supporting-block, which may means for supporting the spring may be used, be used for holding up the spring. if desired. The filling block may also be Fig. 1 illustrates the friction draw gear formed without the recess 13, and in that case 45 and buffing apparatuasuch as shown and deit may be made longer, so as to dispense with scribed in patent to George estinghousaNo. the follower-plate 5, the filling-block itself 629,943, of August 1, 1899. The draw-bar is serving as the follower or draft plate of the secured to the strap or yoke 2,,which incloses apparatus.

1. In a draw-gear and bufling apparatus, the

combination with a frame provided with abutments, and a draw-bar having a long draftstrap, of a short draft-spring and a comparatively long filling-block surrounded by the strap, and located between the abutments.

2. The combination with a frame having abutments to cooperate with a friction drawgear and buffing apparatus, of a short draftspring and a comparatively long filling-block adapted to be inserted in the place of the friction mechanism between the abutments.

8. In a draw-gear and bufling apparatus, the combination with a frame having abutments,

of a recessed filling -block together with a spring and follower -plates located between said abutments, and a draw-bar provided with a draft-strap.

L. In a draw-gear and bufling apparatus, the combination with a frame having abutments, a draw-bar and a draft-strap secured thereto, of a buffer-plate, a draft-spring and a fillingblock located between said abutments, and a supporting-block for holding the spring in line with the draw-bar.

5. In a draw-gear and bufling apparatus, the combination of a frame having abutments, a draw-bar, a strap secured thereto, followerplates, a draft-spring and a comparatively long filling-block located between one of the follower-plates and one of the abutments.

In testimony whereof I have hereunto set my hand. 7

FRANCIS L. CLARK. Witnesses:

R. F. EMERY,

J AS. B. MACDONALD. 

